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1.
Case Rep Neurol ; 16(1): 89-98, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38690082

RESUMEN

Introduction: Rhino-orbital-cerebral mucormycosis (ROCM) is a rare angioinvasive fungal infection known to be associated with high morbidity and over 50% mortality. ROCM is becoming more common due to an increase in predisposing immunocompromising comorbidities as well as COVID-19. Case Presentations: We report 2 cases - a 75-year-old woman with diabetes and a 39-year-old man with recurrent diabetic ketoacidosis. Both presented initially with acute sinonasal symptoms, were positive for SARS-CoV-2, and diagnosed with acute ROCM. Both underwent mutilating surgical therapy as well as high-dose amphotericin B treatment. With continued oral antifungal treatment, patient 1 showed stable symptoms despite radiographically increasing disease and died of urosepsis 5 months after first surgery. With posaconazole treatment, patient 2 recovered from the disease and showed no clinical sign of disease progression after 1 year. Conclusion: Despite the rarity of the disease, ROCM should be considered if the findings of clinical and radiological examination fit, so that a delay in treatment initiation can be avoided. As our both cases show, survival from ROCM is possible - albeit at a high cost.

2.
Med Mycol Case Rep ; 44: 100648, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38654745

RESUMEN

We describe a case of rhino-orbital-cerebral mucormycosis (ROCM) in a diabetic patient. She presented with cavernous sinus syndrome and ischemia of the optic nerve. Initially unremarkable findings in the nasal cavity and paranasal sinus delayed early diagnosis. Within two weeks, a follow-up MRI showing progressive orbital inflammation, thrombosis of the cavernous sinus and erosive destruction of the left middle nasal concha together with necrotic black tissue in the left nasal cavity and destruction of the maxillary sinus demonstrated in a consecutively performed ethmoidectomy, finally gave way to diagnosis. Definite diagnosis was established by histopathology and culture. Treatment consisted of a combination of liposomal Amphotericin B, partial surgical resection and improved diabetes control. Despite insufficient surgical treatment, the progression of the disease was remarkably slow - a typical hallmark of chronic ROCM. With this case report we aim to underline the difficulties in establishing a prompt diagnosis of ROCM and to remind readers of its chronic form. 2012 Elsevier Ltd. All rights reserved.

3.
Int Arch Otorhinolaryngol ; 28(2): e240-e246, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38618587

RESUMEN

Introduction Many patients suffered from rhino-orbital-cerebral mucormycosis during the coronavirus disease 2019 (COVID-19) pandemic in India. Diabetes is a known risk factor of COVID-19 infection and mucormycosis. Objective The present study was done to describe the clinical spectrum and histopathological findings of mucormycosis in COVID-19 patients and their outcomes. Methods A cross-sectional study was done over a period of two and half months. The biopsy samples or scrapings from sinonasal or periorbital tissue of 38 patients were analyzed. Hematoxylin & Eosin (H&E stain) slides were evaluated along with Grocott-Gomori methenamine-silver and Periodic acid-Schiff stains to highlight the fungal elements. Results The male to female ratio was 2.5:1, and the mean age of the subjects was 53 years old. A total of 68.4% ( n = 26/38) of the patients had diabetes as a comorbidity, 84.2% ( n = 32/38) had a history of steroid intake, and 55.3% ( n = 21/38) were given supplemental oxygen during their treatment. The common presentations were nasal blockage, discharge, eye pain, headache, and altered mentation. The sites of biopsy were: nasal cavity 76.3% ( n = 29/38), periorbital fat/orbit 21.1% ( n = 8/38), maxillary sinus 15.8% ( n = 6/38) and ethmoid sinus 13.2% ( n = 5/38). In 76.3% ( n = 29/38) cases, broad, irregular, nonseptate, and right-angle branching hyphae were seen on H&E-stained tissue sections. Conclusion COVID-19 led to various complications in individuals affected by it. Mucormycosis was one such lethal complication. An early diagnosis and prompt treatment is crucial to control the progression of the disease and improve outcomes.

4.
Indian J Otolaryngol Head Neck Surg ; 76(1): 1307-1309, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38440446

RESUMEN

ROCM is an invasive fungal infection that has seen a substantial rise in the post covid-19 patients. Here we present an intriguing case of ROCM existing as a coinfection with MDR-TB. The purpose of this manuscript is to highlight the dilemma faced by the clinicians whether to take the risks associated with standard treatment protocols of mucormycosis contraindicated due to coexisting MDR-TB or to play safe and face the consequences of inadequate management.

5.
Turk J Emerg Med ; 24(1): 62-65, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38343519

RESUMEN

Mucormycosis is a progressive and life-threatening disease that has been increasingly reported in patients infected by coronavirus diseases 2019 (COVID-19). We describe a case of rhino-orbital mucormycosis with central nervous system involvement resulting in bilateral blindness and intracranial extension in a patient with uncontrolled diabetes mellitus (DM) and mild COVID-19 infection. A 35-year-old obese male, recently diagnosed with DM, presented to the emergency department suffering from dizziness, headache, speech difficulty, and facial weakness. His glycosylated hemoglobin was 10.4% and his reverse transcriptase-polymerase chain reaction (PCR) test came positive for COVID-19. Ocular examination revealed left eye proptosis, ophthalmoplegia, and lid edema with no ocular movement. Imaging studies showed pansinusitis and periorbital and orbital cellulitis with intracranial involvement. Histopathology and biopsy examination confirmed mucormycosis. Medical management included glucose control and liposomal amphotericin B therapy. Septoplasty and functional endoscopic sinus surgery was performed as emergency procedures. The patient survived with bilateral blindness. In this case, we described the importance of considering mucormycosis in COVID-19 patients with uncontrolled diabetes, particularly those presenting with sinusitis, headache, and orbital edema symptoms. Despite intensive antifungal therapy and surgical intervention, it is a serious opportunistic fungal infection associated with long-term complications.

6.
Case Rep Ophthalmol ; 15(1): 122-128, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38322311

RESUMEN

Introduction: The aim of this study was to report a case of ROCM related to nasogastric intubation who was survived by liposomal amphotericin B (LAmB) combination therapy in situ without orbital exenteration. Case Presentation: A 44-year-old woman presented with a 1-week history of rapidly enlarging swelling on the right nose, cheek, and lower eyelid after underwent gastrointestinal decompression. The lesions were derived from the nasal area where the nasogastric tube had been placed. Based on the biopsy results and clinical manifestations, ROCM was diagnosed. Immediate combination therapy with intravenous LAmB and micafungin and multisection debridement of the right facial region were applied. Postoperative treatment included cleaning, irrigating, and local dressing of the wound area using LAmB. LAmB was also used daily as binocular eye drops against deep infection on the eyeballs. The patient recovered well 4 months later and remained free of disease after 40 months of follow-up. Conclusion: This case adds to our knowledge on the potential risk of nasogastric intubation for mucormycosis infection. Nasogastric tube may be the source of infection associated with ROCM. This report evaluates the beneficial effect of LAmB combination therapy in situ for cleaning, irrigating, local wound dressing, and eye drops on lesion areas. The combination of LAmB as cleaning, irrigating, local dressing solution, and eye drops to control intraocular and intraorbital ROCM infection has not been previously reported to our knowledge. These methods provide multiple choices to substitute for orbital exenteration on the survival of ROCM patients.

7.
Ann Med Surg (Lond) ; 86(1): 507-511, 2024 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-38222772

RESUMEN

Introduction and importance: Acute sinusitis can cause intraorbital complications. Although subperiosteal abscesses generally do not cause severe vision loss, rare cases of decreased vision due to central artery or vein occlusion have been reported since 2003. Central retinal artery occlusion (CRAO) is an eye emergency that can cause sudden loss of vision. This condition is commonly found in elderly individuals with other metabolic diseases. The authors report a case of a type 2 diabetes mellitus (T2DM) patient with CRAO due to suspected rhino-orbital-cerebral mucormycosis (ROCM). Case presentation: A 47-year-old man came with sudden blurred vision since the last week. Examination of the left eye revealed no light perception and vision, orthophoric eyeball position with restricted movement in all directions. Hypaesthesia was observed on the left side of the face. In the anterior segment, oedema of the eyelids, ptosis, conjunctival injection, ciliary injection and chemosis, clear cornea, deep anterior chamber with VH4, brown iris, crypts, no neovascularization of the iris, pupil round, mid-dilated with a diameter of 5 mm, no light reflex, relative afferent papillary defect, and NO2NC2 lens were observed. In the posterior segment, non-uniform fundal reflexes were found, as well as retinal oedema, round papillae, hyperaemic fovea reflex (cherry-red spot), and a cup-to-disc ratio that could not be evaluated. The patient was diagnosed with CRAO, orbital cellulitis, and uncontrolled T2DM. The patient was administered topical and oral antibiotics; however, there was no improvement in the left eye. ROCM was suspected. Clinical discussion: CRAO is most often caused by embolization or thrombosis associated with atherosclerosis at the lamina cribrosa level. CRAO accompanied by ROCM infection is very rare; to establish the diagnosis, it is necessary to carry out further examinations so that administered therapy can definitely improve the patient's clinical condition. Due to resource limitation, biopsy and MRI were not performed. Surgical debridement was planned when the patient was stable, but the patient missed follow-up appointments. Conclusion: Fungal aetiology should be considered especially in T2DM patient with CRAO that do not improve with antibiotics.

8.
Expert Rev Mol Diagn ; 24(3): 161-167, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-37405409

RESUMEN

INTRODUCTION: Mucormycosis is a highly aggressive angio-invasive disease of humans caused by Mucorales fungi. Prior to the COVID-19 pandemic, mucormycosis was a rare mycosis typically seen in immunocompromised patients with hematological malignancies or in transplant recipients. During the second wave of the pandemic, there was a dramatic increase in the disease, especially in India where a unique set of circumstances led to large numbers of life-threatening and disfiguring rhino-orbital-cerebral mucormycosis (ROCM) infections. AREAS COVERED: The review examines mucormycosis as a super-infection of COVID-19 patients, and the risk factors for COVID-19-associated mucormycosis (CAM) that drove the ROCM epidemic in India. The limitations of current diagnostic procedures are identified, and the measures needed to improve the speed and accuracy of detection discussed. EXPERT OPINION: Despite increased awareness, global healthcare systems remain unprepared for further outbreaks of ROCM. Current diagnosis of the disease is slow and inaccurate, negatively impacting on patient survival. This is most evident in low- to middle-income countries which lack suitably equipped diagnostic facilities for rapid identification of the infecting pathogens. Rapid antigen testing using point-of-care lateral-flow assays could potentially have aided in the quick and accurate diagnosis of the disease, allowing earlier intervention with surgery and Mucorales-active antifungal drugs.


Asunto(s)
COVID-19 , Mucorales , Mucormicosis , Humanos , Mucormicosis/diagnóstico , Pandemias , COVID-19/diagnóstico , Antifúngicos
9.
Int. arch. otorhinolaryngol. (Impr.) ; 28(2): 240-246, 2024. tab, graf
Artículo en Inglés | LILACS-Express | LILACS | ID: biblio-1558029

RESUMEN

Abstract Introduction Many patients suffered from rhino-orbital-cerebral mucormycosis during the coronavirus disease 2019 (COVID-19) pandemic in India. Diabetes is a known risk factor of COVID-19 infection and mucormycosis. Objective The present study was done to describe the clinical spectrum and histopathological findings of mucormycosis in COVID-19 patients and their outcomes. Methods A cross-sectional study was done over a period of two and half months. The biopsy samples or scrapings from sinonasal or periorbital tissue of 38 patients were analyzed. Hematoxylin & Eosin (H&E stain) slides were evaluated along with Grocott-Gomori methenamine-silver and Periodic acid-Schiff stains to highlight the fungal elements. Results The male to female ratio was 2.5:1, and the mean age of the subjects was 53 years old. A total of 68.4% (n = 26/38) of the patients had diabetes as a comorbidity, 84.2% (n = 32/38) had a history of steroid intake, and 55.3% (n = 21/38) were given supplemental oxygen during their treatment. The common presentations were nasal blockage, discharge, eye pain, headache, and altered mentation. The sites of biopsy were: nasal cavity 76.3% (n = 29/38), periorbital fat/orbit 21.1% (n = 8/38), maxillary sinus 15.8% (n = 6/38) and ethmoid sinus 13.2% (n = 5/38). In 76.3% (n = 29/38) cases, broad, irregular, nonseptate, and right-angle branching hyphae were seen on H&E-stained tissue sections. Conclusion COVID-19 led to various complications in individuals affected by it. Mucormycosis was one such lethal complication. An early diagnosis and prompt treatment is crucial to control the progression of the disease and improve outcomes.

10.
Cureus ; 15(10): e47065, 2023 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-38021649

RESUMEN

INTRODUCTION: Mucormycosis has gained a huge number of cases in the second wave of post COVID-19 infection, which may be attributed to increased awareness, advancement in diagnostic techniques, and an increase in the prevalence of predisposing factors. This study evaluated the pattern, risk factors, and clinical profile of patients with mucormycosis during the second wave of the COVID-19 pandemic. METHODS: A prospective observational study was conducted in the Department of Emergency Medicine of a dedicated tertiary care hospital for COVID-19. The Institutional Ethics Committee approved the study. One hundred five patients diagnosed with mucormycosis were included from June 2021 to December 2021. Informed consent was obtained from the patients. Data on demography, clinical features, predisposing factors, co-morbid conditions, and microbiological samples were obtained and analyzed. RESULTS:  Out of 105 patients, 71 were male, and 34 were female. The patient presented with mucormycosis between the 2nd and 3rd week of post COVID-19 infection. Incidence was mainly seen in patients in their fifties, mostly associated with diabetes mellitus (DM) (53.30%), oxygen administration (80%), and previous use of steroids (45.71%). Predominantly, males were more affected. The most common presentation was headache (50.47%), orbital pain with restricted ocular movement (47.67%), proptosis (42.85%), and diminished vision (41.90%). Rhino-orbital-cerebral mucormycosis (ROCM) was the most common presentation of mucormycosis, while only five cases of pulmonary mucormycosis were found. CONCLUSION: ROCM was the most common presentation of mucormycosis between the second and third week of post COVID-19 infection. Diabetes mellitus and inadvertent use of steroids were major predisposing factors. Therefore, a high degree of suspicion and early diagnosis with initiation of treatment is warranted in cases of mucormycosis in post COVID-19 infection.

11.
Ann Med Surg (Lond) ; 85(10): 4773-4779, 2023 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-37811078

RESUMEN

Background: Rhino-orbital-cerebral mucormycosis (ROCM) is a life-threatening condition caused by a saprophytic fungus that predominately affecting immune-compromised patients. Early diagnosis of ROCM is of utmost importance to start the treatment as early as possible to prevent early and horrible complications of the disease. Materials and methods: This retrospective study evaluated the imaging findings of 21 patients with biopsy and KOH mount-based evidence of invasive ROCM. The imaging was obtained from a Siemens Magnetom Amira 1.5T system with a strength of 1.5T or more. The spectrum of findings was evaluated for the sites of involvement, signal intensity, contrast characteristics, necrotic component as well as orbital, infratemporal, and intracranial extensions, especially cavernous sinuses, Meckel's cave, and the brain parenchyma. Results: The mean age of the patients was 55.8±10.9 years and included 71% male. All the patients were positive for COVID-19 and the majority were diabetic. MRI showed predominant involvement of the maxillary sinus (17, 81%) and the ethmoidal sinus (15, 71.4%). The orbital extension was present in 18 cases (86%). T1-weighted imaging showed iso to low signal intensity in involved sinuses in the majority of the patients (9, 42.9%). Heterogeneously high signal intensity was observed in T2-weighted and short tau inversion recovery images in all the patients. Heterogenous contrast enhancement was present in 20 (95.2%) patients. Conclusion: The imaging spectrum of ROCM is variable. Multiplanar MRI with postcontrast images is a very useful complementary tool to the clinical evaluation to assess the extent of disease and its complications, which has a high mortality. Clinicians and radiologists should be aware of the imaging spectrums of ROCM.

12.
Mycopathologia ; 188(5): 783-792, 2023 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-37672164

RESUMEN

BACKGROUND: Despite the unprecedented surge in the incidence of mucormycosis in the COVID-19 era, the antifungal susceptibility patterns (ASPs) of COVID-19 associated mucormycosis (CAM) isolates have not been investigated so far and it is unclear if the high mortality rate associated with CAM is driven by decreased susceptibility of Mucorales to antifungal drugs. OBJECTIVES: To describe the clinical, mycological, outcome and in vitro ASPs of CAM cases and their etiologies from Iran. PATIENTS/METHODS: A prospective study from January 2020 to January 2022 at a referral tertiary hospital in Tehran, Iran was conducted for screening mucormycosis through histopathology and mycological methods. The identity of Mucorales isolates was revealed with ITS-panfungal PCR& sequencing and MALDI-TOF. The AS for amphotericin B, itraconazole, isavuconazole and posaconazole was cleared according to the EUCAST antifungal susceptibility testing protocol. RESULT: A total of 150 individuals were diagnosed with CAM. Males constituted 60.7% of the population. The mean age was 54.9 years. Diabetes was the leading risk factor (74.7%). The median interval between diagnosis of COVID-19 and CAM was 31 days. The recovery rate of culture was as low as 41.3% with Rhizopus arrhizus being identified as the dominant (60; 96.7%) agent. Amphotericin B (MIC50 = 0.5 µg/ml) demonstrated the highest potency against Mucorales. CONCLUSION: Majority of the cases had either diabetes, history of corticosteroid therapy or simultaneously both conditions. Accordingly, close monitoring of blood glucose should be considered. The indications for corticosteroids therapy are recommended to be optimized. Also, an anti Mucorales prophylaxis may be necessitated to be administrated in high risk individuals. Although amphotericin B was the most active agent, a higher rate of resistance to this antifungal was noted here in comparison with earlier studies on mucormycetes from non-CAM cases.


Asunto(s)
COVID-19 , Diabetes Mellitus , Mucorales , Mucormicosis , Masculino , Humanos , Persona de Mediana Edad , Mucormicosis/diagnóstico , Mucormicosis/tratamiento farmacológico , Mucormicosis/epidemiología , Antifúngicos/farmacología , Antifúngicos/uso terapéutico , Anfotericina B/farmacología , Anfotericina B/uso terapéutico , Centros de Atención Terciaria , Irán/epidemiología , Estudios Prospectivos , Diabetes Mellitus/tratamiento farmacológico
13.
Ann Diagn Pathol ; 67: 152183, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-37696132

RESUMEN

BACKGROUND: There was an upsurge in rhino-orbital-cerebral mucormycosis (ROCM) during the second wave of the COVID-19 pandemic in India. Histopathological examination of the biopsies witnessed greater tissue invasion in these cases. The present study aimed to evaluate the histopathological scoring system in the severity assessment and to compare the scores between ROCM that required orbital exenteration (cases) and those that were treated conservatively (controls). MATERIAL AND METHODS: A retrospective study was conducted to analyze the histopathological features using a scoring system in patients diagnosed with mucormycosis on sino nasal biopsies. The scoring was based on the following parameters: the extent of necrosis (score 1 <50% and score 2 >50%), degree of angioinvasion (score 1 <3 vessels in 10 fields and score 2 > 3 vessels in 10 fields), degree of inflammation (mild, moderate or severe), and fungal load(score 1 to 4), based on which three grades (I to III) were given. The scores were compared between the case group and the control group. The data obtained were analyzed statistically. RESULTS: The study included 40 controls and 10 cases. The median age of patients in the control group was 52 with 82.5%males (n = 43) and 17.5 % females (n = 7) while in the case group, the median age was 51 years, and all were males. The predominant inflammatory response was of mixed suppurative type (70 %, n = 28). The degree of necrosis was scored 2 in 57.5 % (n = 23) of controls and 70 %(n = 7) in the case group. All the samples in the case group showed scores of 2 for angioinvasion and scores of 3 and 4 for fungal load. There was a statistically significant difference in the degree of necrosis, angioinvasion, the severity of neutrophilic infiltrates, and fungal load between the cases and controls (p-value <0.05). CONCLUSION: The present study analyses the predictive role of histopathology in invasive mucormycosis. Higher fungal load, degree of angioinvasion, and the absence of granulomas are associated with advanced disease in sinonasal mucormycosis. The study findings recommend incorporating the histopathological scoring criteria in evaluating patients with sinonasal mucormycosis.


Asunto(s)
COVID-19 , Mucormicosis , Femenino , Masculino , Humanos , Persona de Mediana Edad , Mucormicosis/diagnóstico , Estudios de Casos y Controles , Estudios Retrospectivos , Pandemias , Necrosis
14.
Natl J Maxillofac Surg ; 14(2): 311-316, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37661985

RESUMEN

Rhino orbital cerebral mucormycosis (ROCM) is an important infectious disease encountered in large numbers in this recent post-COVID-19 era. An alteration in the defense immune system during COVID-19 illness; in the presence of uncontrolled hyperglycemia has led to the new epidemic of ROCM, especially in developing nations such as India. This case series of thirteen patients illustrates the various clinical presentations, laboratory parameters, imaging features and outcomes of patients with ROCM admitted to a tertiary care hospital in Northern India. In our case series, a total of 13 newly diagnosed cases of rhino-orbital-cerebral mucormycosis were studied. A history of COVID-19 illness was observed in seven cases (53.8%) with a mean duration of mucormycosis after 25 ± 3.6 days, the use of steroids during COVID-19 illness was seen in 5 cases (38.5%), and oxygen therapy was given in 4 cases (30.8%). A comorbid state in the form of diabetes mellitus was present in 12 cases (92.3%) with a mean duration of 16.69 months, with an important finding of seven cases (53.85%) having new-onset diabetes; hypertension was present in three cases (23.1%). Magnetic resonance imaging of paranasal sinuses showed involvement of multiple sinuses in all 13 cases (100%), including maxillary and ethmoidal sinuses, with frontal involvement in 12 cases (92.3%), sphenoidal involvement in 11 cases (84.6%), symmetric involvement in 9 cases (69.2%), mastoiditis in four cases (30.8%), maxillary space involvement in four cases (30.8%), and palatal involvement in one case (7.7%). On statistical analysis, there was a significant association of new-onset diabetes, optic neuropathy and high C reactive protein with blindness (P-value < 0.05) in our study. However, there were no statistically significant association for the involvement of nervous system in our study. Multispecialty approach treatment was given in the liposomal amphotericin B therapy in all the patients along with thorough endo-nasal debridement done in all cases, transcutaneous retrobulbar amphotericin B in six cases (46.2%) with exenteration done in seven patients (53.9%). At 3 months of follow-up, there was substantial clinical improvement in all cases. There should be definite emphasis on high suspicion of mucor clinically for early diagnosis and aggressive management at the initial state of diagnosis for better outcomes. The need for sustained proper glycemic control during the COVID-19 era along with judicious use of steroids and public awareness of early symptoms and manifestations of mucor can curb the magnitude of such potentially opportunistic epidemics to a substantial rate. New-onset diabetes mellitus, optic neuropathy and high C reactive protein (>50 mg/L) showed statistically significant association with blindness. The longer the infection remains undetected, the greater the devastation ROCM can impose, of which blindness is an important hazard.

15.
J Fungi (Basel) ; 9(8)2023 Aug 02.
Artículo en Inglés | MEDLINE | ID: mdl-37623586

RESUMEN

Ten Candida species strains were isolated from the first known fatal case of rhinofacial and rhino-orbital-cerebral candidiasis. Among them, five strains of Candida parapsilosis complex were isolated during the early stage of hospitalization, while five strains of Candida tropicalis were isolated in the later stages of the disease. Using whole-genome sequencing, we distinguished the five strains of C. parapsilosis complex as four Candida metapsilosis strains and one Candida parapsilosis strain. Antifungal susceptibility testing showed that the five strains of C. parapsilosis complex were susceptible to all antifungal drugs, while five C. tropicalis strains had high minimum inhibitory concentrations to azoles, whereas antifungal-drug resistance gene analysis revealed the causes of azole resistance in such strains. For the first time, we analyzed the microevolutionary characteristics of pathogenic fungi in human hosts and inferred the infection time and parallel evolution of C. tropicalis strains. Molecular clock analysis revealed that azole-resistant C. tropicalis infection occurred during the first round of therapy, followed by divergence via parallel evolution in vivo. The presence/absence variations indicated a potential decrease in the virulence of genomes in strains isolated following antifungal drug treatment, despite the absence of observed clinical improvement in the conditions of the patient. These results suggest that genomic analysis could serve as an auxiliary tool in guiding clinical diagnosis and treatment.

16.
J Fungi (Basel) ; 9(8)2023 Aug 03.
Artículo en Inglés | MEDLINE | ID: mdl-37623595

RESUMEN

Mucormycosis (MCM) is a serious invasive fungal disease (IFD) that is associated with high mortality, particularly in immunocompromised patients. A global surge in MCM cases was reported with the COVID-19 pandemic. We analyzed all recorded cases of MCM at the American University of Beirut Medical Center (AUBMC), a tertiary care center in Lebanon, over 14 years. We aimed to identify the incidence, seasonal variation, clinical characteristics of the patients, and predictors of mortality. We conducted a retrospective chart review between 1 January 2008 and 1 January 2023. All patients with proven or probable MCM were included in the study. Proven or probable MCM was defined by positive histopathology and/or positive cultures. A total of 43 patients were identified as having MCM. Their median age was 53 years, and the majority were males (58.1%). Most of the cases were diagnosed in the autumn season. In total, 67.4% of the patients had hematological malignancies (HMs), and 34.9% had uncontrolled diabetes mellitus (DM). The most common site of involvement was rhino-orbital-cerebral MCM (ROCM) (74%). The annual cases of MCM per 100,000 patient days increased markedly during the years of the COVID-19 pandemic (from 0 to 4.4 cases/100,000 patient days to 7.5 cases/100,000 during 2020 and 2021). Liposomal amphotericin (Ampho) B was used as a first-line agent in most of the patients (86%). The median duration of total in-hospital antifungal therapy was 21 days and 51.2% of the patients received step-down therapy with azoles. Surgical debridement and isolated ROCM were significantly associated with survival (p-value: 0.02 and <0.001, respectively). All-cause mortality was 46.7%, with chronic renal disease being significantly associated with mortality (p-value < 0.05). The incidence of MCM has been increasing at our institution, particularly since the COVID-19 pandemic. Early diagnosis, treatment, and surgical debridement improve patient outcomes and overall survival.

17.
Ann Hematol ; 102(10): 2933-2942, 2023 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-37421505

RESUMEN

Rhino-orbital-cerebral mucormycosis (ROCM), which is an acute fatal infectious disease with a high mortality rate, is increasingly being diagnosed in patients with hematological diseases worldwide. We aimed to investigate the clinical characteristics, treatment, and prognosis of hematological diseases complicated by ROCM. Our sample comprised a total of 60 ROCM patients with hematological diseases. The most common primary disease was acute lymphoblastic leukemia (ALL) (n=27, 45.0%), while 36 patients (60.0%) were diagnosed with a clear type of pathogen, all belonging to the Mucorales, most commonly Rhizopus (41.7%). Of the 32 patients (53.3%) who died, 19 (59.3%) died of mucormycosis, and 84.2% (n=16) of those died within 1 month. Forty-eight cases (80.0%) received antifungal treatment combined with surgical therapy, 12 of whom (25.0%) died of mucormycosis, amounting to a mortality rate that was significantly lower than in patients who received antifungal therapy alone (n=7, 58.3%) (P=0.012). The median neutrophil value of patients who underwent surgery was 0.58 (0.11-2.80) 103/µL, the median platelet value was 58.00 (17.00-93.00) 103/µL, and no surgery-related deaths were reported. Multivariate analysis showed that patient's advanced age (P=0.012, OR=1.035 (1.008-1.064)) and lack of surgical treatment (P=0.030, OR=4.971 (1.173-21.074)) were independent prognostic factors.In this study, hematological diseases associated with ROCM have a high mortality rate. Lack of surgical treatment is an independent prognostic factor for death from mucormycosis. Surgery may therefore be considered in patients with hematological disease even if their neutrophil and platelet values are lower than normal.


Asunto(s)
Enfermedades Hematológicas , Mucorales , Mucormicosis , Humanos , Mucormicosis/diagnóstico , Mucormicosis/tratamiento farmacológico , Mucormicosis/microbiología , Antifúngicos/uso terapéutico , Desbridamiento , Enfermedades Hematológicas/complicaciones , Enfermedades Hematológicas/tratamiento farmacológico
18.
Cureus ; 15(6): e40483, 2023 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-37461781

RESUMEN

A middle-aged man with multiple comorbidities including uncontrolled diabetes mellitus presented with shortness of breath and lethargy for six days. He was treated for COVID-19 pneumonia, requiring high cumulative steroid therapy. After 15 days of treatment, he developed right orbital apex syndrome with central retinal artery occlusion secondary to invasive mucormycosis. The infection progressed rapidly despite aggressive medical treatment, systemic anti-fungal therapy along with local transcutaneous retrobulbar amphotericin B injection. We report our battle in fighting this vicious disease. Judicious use of immunomodulators in COVID-19 treatment and close monitoring is crucial, especially in high-risk patients.

19.
Saudi J Ophthalmol ; 37(2): 100-106, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37492213

RESUMEN

PURPOSE: The purpose was to study the demographics, clinical and radiological presenting patterns, prognostic variables, and outcome of management of rhino-orbital-cerebral-mucormycosis (ROCM) in coronavirus disease (COVID-19) patients. METHODS: We retrospectively analyzed COVID-19 patients with proven ROCM from April 2021 to November 2021. All included patients were given systemic antifungal therapy depending on clinical response and underwent functional endoscopic sinus surgery (FESS) with orbital wall decompression. Administration of transcutaneous retrobulbar amphotericin B (TRAMB) injection, exenteration, and maxillectomy was done when indicated as per a novel algorithm. RESULTS: A total of 64 patients with ROCM were included in the study. The mean age of 54.5 (standard deviation [SD] - 10.6) years with a male predominance (male: female = 55:9) was observed. Pre-existing diabetes mellitus (DM) was the most common comorbid state, 47 (73.4%). The most common ophthalmic presentation was proptosis (n = 40) (62.5%). Bulky extraocular muscles (n = 64) (100%) and intraorbital fat stranding (n = 41) (64%) were the most common radiological findings. Twenty-eight patients received TRAMB, while 11 patients underwent exenteration with FESS. Our study had a mortality rate of 18.7% (n = 12). The mean glycated hemoglobin of 13.5% (SD - 1.1) and a higher serum ferritin value of 976.25 (SD - 592) were observed in the deceased group. Vision was preserved in 38 (73.7%) patients in the survived group. CONCLUSION: ROCM has a wide array of presentations, with proptosis as the most common clinical finding. Bulky EOM and intraorbital fat stranding were the most common radiological findings. Thorough surgical debridement with systemic and local antifungal therapy results in reasonable outcomes for ROCM in COVID-19 patients. Older age, intensive care unit admissions, uncontrolled DM, central nervous system involvement, and shorter duration of antifungal treatment are poor prognostic factors associated with mortality.

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